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United States Patent | 5,018,218 |
Peregrim ,   et al. | May 21, 1991 |
A method of aligning two images of the same scene by matching features in a first image to features in a second image is disclosed. The method comprises identifying edges of objects in the first image using two different processes. The edges identified using both processes are compared and combined into one image representing confirmed edges which are readily identified in other images of the same scene. A template is then formed from the confirmed edges which is matched to a subregion of the second image.
Inventors: | Peregrim; Theodore J. (Bedford, MA); Richter; Stephen L. (Harvard, MA); Roy; Richard E. (Maynard, MA) |
Assignee: | Raytheon Company (Lexington, MA) |
Appl. No.: | 237935 |
Filed: | August 29, 1988 |
Current U.S. Class: | 382/103; 342/62; 342/64; 348/26; 382/199; 382/216; 382/217; 382/272 |
Intern'l Class: | G06K 009/00 |
Field of Search: | 382/22,30,34 358/105 342/62,64 |
4499595 | Feb., 1985 | Masaitis et al. | 382/9. |
4581762 | Apr., 1986 | Lapidus et al. | 382/22. |